[27] United States - Import Prohibition of Certain Shrimp and Shrimp Products ,Report of The Appellate Body, WT/DS58/AB/R,12 October 1998. para. 141,145.
[28] United States - Standard for Reformulated and Conventional Gasoline, Report of The Appellate Body, WT/DS2/AB/R, adopted 20 May 1996, pp.20-21.
[29] The United Nations Environment Programme and the International Institute for Sustainable Development, Environment and Trade:A Handbook(2nd Edition),2005.p.38.
[31] Japan- Alcoholic Beverages Ⅱ, Report of The Appellate Body , WT/DS10/AB/R; DS11/AB/R, adopted on 1 November 1996 ,p.29.